Which of the Following Is the Existential Instantiation Rule?
A)(x) $\exists$

question 88

Multiple Choice

Which of the following is the existential instantiation rule?

• A)(x)( ...x ...).Therefore, ( ...a ...)
• B)~(x)( ...x ...).Therefore, (\(\exists\)x)~( ...x ...)
• C)( ...a ...).Therefore, (\(\exists\)x)( ...x ...)
• D)(\(\exists\)x)( ...x ...).Therefore, ( ...a ...)
• E)( ...a ...).Therefore, (x)( ...x ...)

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Definitions:

Variable Costs

Costs that vary directly with the level of production or volume of output.